CN105377203A - Methods and apparatuses for folding absorbent articles - Google Patents
Methods and apparatuses for folding absorbent articles Download PDFInfo
- Publication number
- CN105377203A CN105377203A CN201480025794.5A CN201480025794A CN105377203A CN 105377203 A CN105377203 A CN 105377203A CN 201480025794 A CN201480025794 A CN 201480025794A CN 105377203 A CN105377203 A CN 105377203A
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- CN
- China
- Prior art keywords
- absorbent article
- flap
- petiolarea
- carrier
- leading edge
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
- A61F13/15747—Folding; Pleating; Coiling; Stacking; Packaging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H45/00—Folding thin material
- B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
- B65H45/18—Oscillating or reciprocating blade folders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/57—Diaper manufacture
Abstract
The present disclosure relates systems and methods for folding absorbent articles advancing in a converting line. The folding processes and apparatuses herein may be configured with tucker blades that are configured to maximize the period of time wherein the leading edges of the tucker blades move at maximum speeds during the folding process.
Description
Technical field
The disclosure relates to the system and method for the disposable absorbent article in the roll gap for being folded between the first carrier and Second support, and relating more specifically to flap, it is constructed such that wherein leading edge moves with the speed quite close to the speed of the first carrier and Second support and is maximized by the time period of roll gap.
Background technology
Can along assembly line, online and otherwise assemble diaper and other absorbent article various types of by transforming described web material and advancing by assembly being added to continuous print material fiber.Such as, in some techniques, the web material of propelling and other web material advanced combined.In other example, the single component generated by the web material that advances and the web material of propelling combined, then combined with other web material advanced.Be used for manufacturing the web material of diaper and component parts can comprise: egative film, top flat, absorbent cores, front auricle and/or rear auricle, fastener assemblies and various types of elastic webs and assembly such as lower limb elastomeric element, barrier leg cuff elastomeric element and waist elastomeric element.After desired component parts being assembled, final blade cuts is stood fleece to be separated into discrete diaper or other absorbent article to the fleece advanced and component parts.
After carrying out final blade cuts, discrete diaper or absorbent article then also can be folded before encapsulation.Such as, certain technique can be configured to absorbent article to be folded into U-shaped around lateral centerline, wherein folded sheet engage and in the roll gap forcing the absorbent article of propelling to enter between two conveyer belts.Such as, in some diaper folding processes, folded sheet can the crotch district of touching diaper, forces diaper enter folding roll gap and make front waist region and back waist region be facing relation thus.Like this, folded sheet rotates with a certain angular velocity, which creates in time by the sinusoidal shape of the frontal velocity of roll gap.Therefore, wherein with maximum frontal velocity folded products is advanced to the time period relative narrower in folding roll gap.
In some systems, conveyer belt with than maximum frontal velocity faster speed move avoid product shear flaw, this can occur when the folded sheet on folded diaper inside moves sooner than the conveyer belt of folded diaper outside.Like this, diaper accelerates to a certain maximal rate by folded sheet to be come by roll gap, and is then rapidly accelerated to the superficial velocity of conveyer belt.This timing accelerated can be depending on each factor, such as: the friction between conveyer belt and diaper surface; The compressibility of diaper; And the gap setting between conveyer belt.All these factors can change from a diaper to next diaper in time or even, and then it causes and accelerates timing change.
The change accelerating opportunity during folding process can cause variability about the how good mutual alignment of the opposite ends of twofold diaper and discordance, affects the overall size of folded diaper.These discordances can produce negative consumer's perception and also can need than relatively larger package dimension required in other cases.Change opportunity and folded diaper also can be caused to arrive encapsulation unit subsequently at different time, it can cause being stuck in these unit places, and/or too much obstruct waste material.
Therefore, a kind of system of reliable high speed folding absorbent article is it is beneficial that provided, it is constructed such that the leading edge of wherein folded sheet maximizes with the time period of maximal rate movement during folding process, then reduces wherein folding products and accelerates to the opportunity of line speed and cause decreasing the variability of the size of folding products.
Summary of the invention
The disclosure relates to the system and method for being folded in the absorbent article that converting line advances.Folding process herein and equipment can be constructed flap, and described flap are constructed such that the leading edge of wherein flap during folding process maximized with the time period of maximal rate movement.
Under a kind of form, a kind of method for unfolded absorbent article comprises the following steps: on the first carrier, transmit absorbent article to limit goods transport plane along first direction with First Speed S1, wherein absorbent article comprises first surface and the second surface contrary with first surface, wherein absorbent article comprises first end and the second end, and wherein absorbent article comprises the first petiolarea and the second petiolarea, and the center between the first petiolarea and the second petiolarea; First petiolarea is advanced through the roll gap be limited between the first carrier and Second support; Swivel hinge plate, wherein flap comprise first surface and the second surface contrary with first surface, and wherein flap comprise leading edge and trailing edge, and wherein when flap rotate, leading edge and trailing edge move by goods transport plane at roll gap place; Make the leading edge of the first surface contact flap of absorbent article, produce the fold line of the center across absorbent article thus; The leading edge of flap is utilized again to be directed in roll gap along second direction the center of absorbent article; Keep the contact between fold line and the leading edge of flap to reach total time section Ttot, the part of the leading edge simultaneously contacted with fold line moves with the speed Smax of at least 0.8*S1 the time period Tmax reaching at least 0.5*Ttot; And folding absorbent article is transmitted along second direction away from goods transport plane between the first carrier and Second support.
Under another kind of form, a kind of method for unfolded absorbent article comprises the following steps: the absorbent article of continuous length is longitudinally advanced with linear velocity SL; The absorbent article of continuous length is cut into discrete absorbent articles, wherein each discrete absorbent articles comprises first surface and the second surface contrary with first surface, wherein each discrete absorbent articles comprises the first petiolarea and the second petiolarea, and the center between the first petiolarea and second district, and wherein each discrete absorbent articles comprises first end and the second end, and there is the pitch length PL limited by the distance longitudinally between first end and the second end; First carrier transmits each discrete absorbent articles to limit goods transport plane along first direction with First Speed S1, and wherein S1 is greater than SL; The first end of each discrete absorbent articles and the first petiolarea are advanced through the roll gap be limited between the first carrier and Second support; Swivel hinge plate, when flap rotate, it passes through goods transport plane at roll gap place; Make the leading edge of the first surface contact flap of discrete absorbent articles, produce the fold line of the center across discrete absorbent articles thus; The leading edge of flap is utilized again to be directed in roll gap along second direction the center of absorbent article; And keeping the contact between fold line and the leading edge of flap to reach total time section Tot, the part of the leading edge simultaneously contacted with fold line moves with the speed Smax of at least 0.8*S1 the time period Tmax reaching at least 0.5*Ttot; And transmit folding absorbent article along second direction away from goods transport plane.
Under another form, a kind of equipment for unfolded absorbent article comprises: blade, and it is suitable for from longitudinally cutting discrete absorbent articles with the absorbent article of the continuous length of linear velocity SL propelling; First carrier, it is suitable for transmitting absorbent article along first direction and second direction with First Speed S1; Second support, its contiguous first carrier limits the roll gap extended along second direction; Flap, it comprises leading edge, and wherein when flap rotate, leading edge moves by goods transport plane at roll gap place; And motor, it is suitable for swivel hinge plate to keep the contact between absorbent article and the leading edge of flap to reach total time section Ttot, and the leading edge portion simultaneously contacting absorbent article moves with the speed Smax of at least 0.8*S1 the time period Tmax reaching at least 0.5*Ttot.
Accompanying drawing explanation
Fig. 1 is the plan view from above of the disposable absorbent article that can comprise according to disclosure structure and one or more layers folding substrate and/or assembly.
Fig. 2 is the schematic diagram of absorbent article converting line and folding system.
Fig. 3 is the detailed maps of folding system.
Fig. 3 A is the view coming from two flap of Fig. 3 that 3A-3A along the line intercepts.
Fig. 4 is the detailed maps of folding system, it illustrates the absorbent article advanced towards the roll gap between the first carrier and Second support along first direction.
Fig. 5 is the detailed maps of folding system, it illustrates wherein first end and the first petiolarea and is pushed into the absorbent article through roll gap.
Fig. 5 A is the view coming from two flap of Fig. 5 that 5A-5A along the line intercepts.
Fig. 6 is the detailed maps of folding system, it illustrates the flap rebooted along second direction the center of absorbent article in roll gap.
Fig. 7 is the detailed maps of folding system, it illustrates the contrary petiolarea of the unfolded absorbent article of the opposition side of contact flap.
Fig. 8 is the detailed maps of folding system, it illustrates the folding absorbent article advancing past roll gap along second direction.
Fig. 8 A is the view coming from two flap of Fig. 8 that 8A-8A along the line intercepts.
Fig. 9 shows in section total time of contact, and the carrier surface speed during total time and the general figures of edge contact partial velocity represent.
Detailed description of the invention
The explanation of following term can be used for understanding the disclosure:
" absorbent article " is used to refer to major function in this article for absorbing and retaining dirt and excremental consumer goods." diaper " used herein refers to generally by absorbent article that baby and incontinent patients wear around lower body.Term " disposable " is used for describing the absorbent article that is not usually intended to wash or otherwise restore or re-use as absorbent article (such as in this article, they are intended to abandon after a single use, and also can be configured to recoverable, compost treatment or the mode with other and environmentally compatible and process).
" elastic ", " elastomer " or " elastomeric " refer to that material list reveals elastic performance, they comprise following any material, when applying power to its lax initial length, described material can stretch or be stretched to the extended length exceeding 10% than its initial length, and substantially will return back to approximately its initial length when discharging applied force.
Term used herein " connection " comprises by element being directly attached to the structure described element being directly fixed to by another element another element described, and by described element to be fixed to by element attachment indirectly the structure of another element described to intermediate member (described intermediate member is attached on another element then).
" longitudinal direction " refers to the end edge when goods are in flat out, uncontracted state from absorbent article, such as edge of waist is to longitudinally contrary end edge, or edge of waist, or the direction that bottom (i.e. fold line) perpendicular in two-fold goods from edge of waist to crotch extends.Direction in longitudinal 45 degree is considered to " longitudinal direction "." side direction " refers to from the side of the longitudinal extension of goods to the side of the contrary longitudinal extension of side direction and to extend and substantially and direction longitudinally at a right angle.Direction in side direction 45 degree is considered to " transverse direction ".
Term " substrate " is used for describing (namely in the xy plane) material being mainly two dimension in this article, and its thickness (in z-direction) is compared relatively little (namely 1/10 or less) with width (in the Y direction) with its length (in the X direction).The limiting examples of substrate comprises one or more layers fleece or fibrous material, non-woven material, thin film and paillon foil such as polymeric film or tinsel.These materials can be used alone and maybe can comprise two or more layers laminated together.Therefore, fleece is substrate.
Term " non-woven material " in this article refers to the material that methods such as adopting such as spun-bond process, meltblown, combing method is made up of continuous (length) silk (fiber) and/or discontinuous (short) silk (fiber).Non-woven material does not have weaving of restriction or braided wires pattern.
Term " longitudinal direction " (MD) is used to refer to the direction of flow of material in the course of processing in this article.In addition, staggered relatively and mobile also can being described to of material longitudinally flows through technique from process upstream to process downstream.
Term " transverse direction " (CD) is used to refer in this article and is approximately perpendicular to longitudinal direction.
The disclosure relates to the method and apparatus for the manufacture of absorbent article.And more specifically, the disclosure relates to the system and method for the folding absorbent article along converting line propelling.As described in greater detail below, folding process herein and equipment can be constructed flap, and described flap are constructed such that the leading edge of wherein flap during folding process maximized with the time period of maximal rate movement.During converting process, various continuous substrate and/or discrete assembly can combination with one another to form the absorbent article of continuous length.In the downstream part of converting process, the absorbent article of continuous length can stand final blade and cut to produce the independent and discrete absorbent article in diaper form.Each discrete absorbent article comprises first surface and the second surface contrary with first surface, and each discrete absorbent article comprises first end and the second end, and by center the first petiolarea separated from one another and the second petiolarea.From final blade, then discrete absorbent article can be advanced to folding system.More specifically, folding system comprises along first direction propelling absorbent article to limit the first carrier of goods transporting flat.Second support is orientated as and is adjacent to the first carrier to limit the roll gap extended along second direction, and one or more flap are adjacent to roll gap rotation.As discussed in more detail, each flap comprise leading edge, and when flap rotate, described leading edge moves by goods transport plane.First carrier then makes the first petiolarea of each discrete absorbent articles advance past roll gap.Discrete absorbent articles then by folding in the roll gap that the center of each absorbent article rebooted the leading edge with flap along second direction, thus produces fold line across the center of absorbent article.
As discussed in more detail below, the first carrier comprises the first carrier surface, and Second support comprises Second support surface, eachly moves with First Speed S1.Therefore, absorbent article is sent to roll gap with First Speed S1 by the first carrier.The leading edge of flap is rotated into the first surface of contact absorbent article, and fold line is set up in the center striding across absorbent article thus.When absorbent article to direct in roll gap and through at that time, the leading edge portion of flap keeps contacting with fold line reaching total time section Ttot by flap again.And the leading edge portion of the flap contacted with fold line reaches time period Tmax with the maximum movement of maximal rate S.Then between the first carrier and Second support, folding products is transmitted with First Speed S1 away from goods transport plane along second direction.As discussed below, Smax and Tmax can have different value.Such as, in some constructions, Smax can be at least: 0.8*S1; 0.95*S1; Or S1.In addition, in some constructions, Tmax can be at least: 0.5*Tmax; 0.7* total time or 0.9* total time.
In certain embodiments, flap also can be configured with the trailing edge of extension, and it prevents the first petiolarea of absorbent article and the second petiolarea from mutually colliding during folding process.More specifically, flap respectively comprise first surface and the second surface contrary with first surface.And flap can be constructed such that the first surface of the first petiolarea of absorbent article and the first surface of flap form facing relation when leading edge continues to promote goods by roll gap along fold line in a second direction.Meanwhile, the first surface of the second petiolarea of absorbent article and the second surface of flap form facing relation.And the first end of folding absorbent article is separated by flap with the second end.Like this, the first petiolarea of absorbent article can contact with the opposition side of flap with the second petiolarea.
Although should be appreciated that method and apparatus herein can be configured to folding various types of product, hereafter in the context manufacturing absorbent article, method and apparatus is herein discussed.Particularly, fold at production period in the context of the diaper of propelling and described method and apparatus is discussed.For the purpose of concrete example, Fig. 1 shows an example of disposable absorbent article 100, the disposable absorbent article in diaper 102 form described in such as U.S. Patent Publication US2008/0132865A1 and US2011/0247199A1, described diaper can by the substrate monitored according to system and method disclosed herein and component structure.Particularly, Fig. 1 is the plane graph of an embodiment of the diaper 102 comprising base structure 104, described base structure be shown in keep flat, non-folded state, and the partially oriented one-tenth of diaper 102 wearer is dorsad towards observer.In order to the feature of various parts that may comprise in the embodiment of the structure and diaper that are more shown clearly in diaper, in Fig. 1, clip a part for understructure.
As shown in Figure 1, diaper 102 comprises base structure 104, and described base structure has the first auricle 106, second auricle 108, third ear sheet 110 and the 4th auricle 112.In order to provide reference frame for this discussion, base structure 104 is illustrated together with axis of pitch 116 with longitudinal axis 114.Base 104 is shown as the crotch district 122 having the first lumbar region 120, lumbar region 118, second and be arranged in the middle of the first lumbar region and the second lumbar region.In some constructions, the first lumbar region 118 can be corresponding with front waist region, and the second lumbar region 120 can be corresponding with back waist region.The periphery of diaper is limited by such as lower part: the side 124,126 of a pair longitudinal extension; The first outward flange 128 that contiguous first lumbar region 118 extends laterally; With the second outward flange 130 that contiguous second lumbar region 120 extends laterally.As shown in Figure 1, base structure 104 comprises the inner surface 132 of body-facing and the outer surface 134 towards clothes.In order to the various features that the structure and diaper that clearly show that diaper may comprise, Fig. 1 has clipped a part for base structure.As shown in Figure 1, the base structure 104 of diaper 102 can comprise outer cover 136, and described outer cover comprises top flat 138 and egative film 140.Absorbent cores 142 can be arranged between a part for top flat 138 and a part for egative film 140.As hereafter more described in detail, any one or more in each district can be stretchable, and can comprise elastomeric material as described herein or layered product.Therefore, diaper 102 can be formed at the body structure conforming to concrete wearer when wearing, and keeps coordinating mutually with wearer's body structure during wearing.
Described absorbent article can also comprise the elastic waist structure 143 of belt 144 form as shown in Figure 1, and can provide and improve stickiness and to excremental saturation.Elastic waist structure 143 can be configured to flexibly to stretch and shrink dynamically to fit the waist of wearer.Elastic waist structure 143 can be incorporated in diaper and can at least longitudinally to stretch out from absorbent cores 142, and general form diaper 102 the first outward flange 128 and/or the second outward flange 130 at least partially.In addition, elastic waist structure also can extend laterally to comprise auricle.Although elastic waist structure 143 or its any element can comprise the one or more independent components be attached on diaper, elastic waist structure can be constructed to other element such as egative film 140, top flat 138 or egative film and the extension both top flat of diaper.In addition, elastic waist structure 143 also can be arranged on the exterior face of base 104 in garment surface 134; Be arranged on inside face on body surface 132; Or be arranged between the outside surface of interior surperficial dough-making powder.Elastic waist structure 143 can construct by many different structures, comprises U.S. Patent Publication US2007/0142806A1; US2007/0142798A1; With the configuration described in US2007/0287983A1; These patent disclosure are incorporated herein by reference all accordingly.
As shown in Figure 1, described diaper 102 can comprise the lower limb hoop 146 that can provide the saturation improved liquid and other body exudates.Particularly, resilient lining lower limb hoop can provide sealing effectiveness around wearer's thigh to prevent seepage.Should be appreciated that, when diaper is worn, lower limb hoop can be placed with and contact with the thigh of wearer, and the degree of this contact and contact pressure partly can be determined by the orientation of diaper on the health of wearer.Lower limb hoop 146 can be arranged on diaper 102 in every way.
Diaper 102 can the form of pants-type diaper provide, or can have the fastening system of Reclosable alternatively, and described system can comprise element in various position to help diaper to be fixed on wearer appropriate location with it.Such as, element 148 can be positioned on the first auricle 110 and the second auricle 112, and can be suitable for connecting with one or more corresponding element be positioned in the first lumbar region or the second lumbar region releasedly.Should be appreciated that various types of element all can use in conjunction with diaper.
Fig. 2 shows the schematic diagram of absorbent article conversion technique, and it comprises converting line or machine 300, and it is configured to manufacture absorbent article 100.Be understood that system and method disclosed herein is applicable in conjunction with various types of conversion technique and/or machine operation.As shown in Figure 2, converting line 300 can comprise one or more motor 302, and described motor drives induction system, such as nip rolls 304, makes it through manufacturing process with mobile diaper substrate and assembly material.Such as, Fig. 2 shows the bottom substrate 306 of material of the part for constructing diaper and two auxiliary substrate and/or assembly 308.Substrate can be provided as roller and be fed in converting line 300.Should be appreciated that the material variously can supplying auxiliary substrate.Such as, Fig. 2 shows the first auxiliary substrate 310 in continuous substrate 312 form, and the second auxiliary substrate 314 in independent assembly 316 form.Be to be understood that auxiliary substrate 310 is sent to bottom substrate by various types of connecting gear.Such as, independent assembly 316 is illustrated as being sent to bottom substrate via the connecting gear 318 in servo patch mechanism 320 form, such as at United States Patent (USP) 6, and 450,321; 6,705,453; 6,811,019; 6,814, disclosed in 217.Be to be further appreciated that, various substrate can be used to the various assemblies constructing absorbent article, such as egative film, top flat, auricle, lower limb hoop, elastic waist structure and absorbent cores.The exemplary description to absorbent article assembly is provided above with reference to Fig. 1.
Referring back to Fig. 2, when bottom substrate 306 is advanced through converting line 300, bottom substrate 306 combines with auxiliary substrate 308 and/or discrete component 316 absorbent article 400 producing continuous length.In the downstream part of converting process 300, the absorbent article 400 of continuous length stands final blade 324 and cuts to produce the independent and discrete absorbent article 100 in diaper 102 form.The defective absorbent article 100R of detection system 600 identifiable design.Then, defective goods 100R can stand baffle system 500 and remove from described technique.Such as, Fig. 2 shows the defective goods 100R be just directed in barrier container 502.It should be understood that the structure that can utilize various types of detection systems 600, for example, such as at United States Patent (USP) 8,145, configuration disclosed in the 338 and various types of sensors 602 be connected with controller 604 via communication network 606 can be comprised.Can make to be regarded as flawless goods 100 and stand further procedure of processing, such as Amscomatic.Such as, Fig. 2 shows the diaper 102 being advanced to folding system 700 from final blade 324.
It should be understood that term " barrier container " is generally used to specify the transmissible position of intercepted diaper in this article.Therefore, barrier container 502 can comprise various system.Such as, barrier container 502 can comprise spare system such as transporter and/or pneumatic system to provide the diaper of conveying in addition or transmission obstruct to other position.
As mentioned above, converting equipment comprises folding system, and it is suitable for the folding absorbent article 100 advancing past conversion technique.Fig. 3-4 shows the detailed maps of the downstream part of converting equipment 300, and it comprises folding system 700, and it is suitable for the discrete absorbent articles 100 of folding longitudinally MD propelling from final blade 324.Folding system 700 can comprise the first carrier 702 being adjacent to final blade 324, and wherein the first carrier 702 advances absorbent article 100 to limit goods transporting flat 706 from final blade 324 along first direction 704.Second support 708 is orientated as and is adjacent to the first carrier 702 to limit the roll gap 710 extended along second direction 712.More specifically, the first carrier 702 can be the form of belt transporting apparatus, and it comprises the first band 714 of restriction first carrier surface 716.As shown in Figure 3, the first band 714 can be delivered around the ring-type collar of three rollers 718.Second support 708 can be the form of belt transporting apparatus, and it comprises the second band 720 limiting Second support surface 722.Second band 720 can be delivered around the ring-type collar of two rollers 724.Therefore, roll gap 710 extends between the first carrier surface 716 and Second support surface 722 along second direction.As hereafter more described in detail, the first carrier 702 advances discrete absorbent article 100 from final blade 324 along first direction 704.And the first carrier 702 and Second support 708 advance folding absorbent article 100 to make it by roll gap 710 along second direction 712.
Continue with reference to Fig. 3, folding system 700 also can comprise one or more flap 726, and it is adjacent to roll gap 710 and rotates.As hereafter more described in detail, flap 726 rotate to be bonded on the absorbent article 100 that the first carrier 702 advances.Then, absorbent article 100 is folded when flap 726 force it along second direction 712 and enter roll gap 710.
Should be appreciated that folding system 700 can be constructed multiple different flap 726.Such as, as shown in fig. 3, folding system can comprise the first flap 726a and the second flap 726b.Flap 726a, 726b are operationally connected with various types of driving mechanism 728, and described driving mechanism is constructed such that flap 726a, 726b rotate around corresponding rotation axis 730a, 730b.As shown in fig. 3, the first flap 726a is configured to rotate along direction A, and the second flap 726b is configured to B rotation in opposite direction.In some constructions, driving mechanism 728 can comprise the one or more motors be connected with flap 726a, 726b directly or indirectly.In some constructions, motor is connected with flap 726a, 726b by various types of transporter, band and/or arrangement of gears.In addition, can be constructed to can in conjunction with the servo motor of constant or variable velocity operation for motor.7,617, disclose the various examples of the driving mechanism layout that can be used to swivel hinge plate 726a, 726b in 656 United States Patent (USP)s.Be understood that driving mechanism 728 can be configured to Constant Angular Velocity swivel hinge plate 726.In certain embodiments, the angular velocity of flap 726 can along with driving mechanism 728 periodic variation that can comprise servo motor.
Continue with reference to figure 3 and Fig. 3 A, each flap comprise first surface 738 and contrary second surface 740.And each flap 726 comprise at least one leading edge 732 and at least one trailing edge 734, and it is connected to each other by edge, outside 736.As discussed more in detail, during folding operation, leading edge 732 and trailing edge 734 rotate along with flap 726 and move by goods transporting flat 706.As shown in fig. 3, flap 726a, 726b is configured to for each complete rotary folding two absorbent articles 100.Therefore, flap 726a, 726b comprises two leading edges 732 and two trailing edges 734 separately.Be understood that flap 726 can be configured to comprise greater or less than two leading edges 732 and trailing edge 734.Be to be further appreciated that, the embodiment of folding system 700 herein also can be configured to every individual unfolded absorbent article 100, thus provides an a kind of method continuous print product stream being separated into two streams.
It should be understood that flap can be located relative to the first carrier 702 and/or Second support 708 in every way.Such as, as shown in fig. 3, the rotation axis 730a of the first flap 726a can transversely be separated with the rotation axis 730b of the second flap 726b by CD.In some constructions, rotation axis 730a, 730b can separate equal lateral separation on the opposition side of longitudinal centre line CL.Longitudinal centre line CL can be limited by the longitudinal centre line 114 of the absorbent article 100,102 advanced along first direction 704 on the first carrier 702.Axis 730a, 730b also can be positioned at differing heights relative to the first carrier 702.Such as, axis 730a, 730b can at the At The Height aliging or offset with goods transporting flat 706.As shown in fig. 3, goods transporting flat 712 offsets along second direction 712 from the line 742 connecting axis 730a, 730b.
In order to provide extra context to discussing above, hereafter provide about the description of Fig. 3-8 to an exemplary of folding system herein and technique.
As shown in Figures 3 and 4, the absorbent article 400 of continuous length longitudinally MD is advanced to final blade 324, and the absorbent article 400 of described continuous length is cut into discrete absorbent article 100 by described final blade 324.Final blade 324 can construct in every way.Such as, final blade 324 can comprise rotor 324a and anvil roller 324b.Each discrete absorbent article 100 can be the form of diaper 102, such as above about described in Fig. 1, and comprises first surface 402 and the second surface 404 contrary with first surface 402.In some constructions, if absorbent article 100 form in diaper 102, so first surface 402 can be corresponding with the inner surface 132 of body-facing and/or top flat 138, and second surface 404 can with towards the outer surface 134 of clothes and/or egative film 140 corresponding.In other structure, first surface 402 can with towards the outer surface 134 of clothes and/or egative film 140 corresponding, and second surface 404 can be corresponding with the inner surface 132 of body-facing and/or top flat 138.Each discrete absorbent article 100 also can comprise first end 405, first petiolarea 406, the second end 407, second petiolarea 408 and the center 410 in the middle of the first district 406 and the second district 408.In some constructions, if the form of absorbent article 100 in diaper 102, so the first petiolarea 406 can be corresponding with the first lumbar region 118; Second petiolarea 408 can be corresponding with the second lumbar region 120, and Ke Yudang district 122, center 410 is corresponding.In addition, first end 405 can be corresponding with the first outer rim 128, and the second end 407 can be corresponding with the second outer rim 130.In other structure, the first petiolarea 406 can be corresponding with the second lumbar region 120, and the second petiolarea 408 can be corresponding with the first lumbar region 118.As shown in Figure 4, between the first end 405 of absorbent article 100 and the second end 407, the distance of MD or first direction 704 limits pitch length PL along the longitudinal.
Continue with reference to Fig. 4, absorbent article 100 is advanced to the first carrier 702 from final blade 324.Absorbent article 100 makes second surface 404 and the first carrier surface 716 one-tenth facing relations through orientation and contacts the first carrier surface 716.First carrier 702 advances absorbent article 100 to make the first end 405 of each absorbent article 100 be front end and the second end 407 is rear ends along first direction 704.It should be understood that first direction 704 can be corresponding with longitudinal MD.The absorbent article 400 of continuous length can be advanced to final blade 324 by linear velocity SL.And the first carrier 702 can make discrete absorbent articles 100 advance from final blade 324 by First Speed S1.In some constructions, First Speed S1 can be identical with linear velocity SL.In other structure, First Speed S1 can be greater than linear velocity SL.And like this, the discrete absorbent articles 100 advanced from final blade 324 can be accelerated to First Speed S1 by the first carrier 702, then causes the continuous absorption goods 100 on the first carrier 702 to be spaced from each other along first direction 704.As shown in Figure 4, discrete absorbent article 100 limits along the propelling of first direction 704 the goods transporting flat 706 that absorbent article 100 carries institute edge on the first carrier 702.
As shown in Figures 4 and 5, the first carrier 702 transmits along goods transporting flat 706 flap 726 that each discrete absorbent article 100 makes the first end 405 of each absorbent article 100 and the first petiolarea 406 be advanced through roll gap 710 along first direction 704 and rotate.With reference to figure 5 and 5A, flap 726a, 726b rotate the first surface 402 making absorbent article 100 in the leading edge 732 contact center district 410 of flap 726a, 726b, thus produce the center 410 transversely fold line 412 that extends of direction CD across absorbent article 100.With reference now to Fig. 6, along with flap 726a, 726b continue to rotate, leading edge 732 moves by goods transporting flat 706 and reboots the center 410 of absorbent article 100 along second direction 712 and make it enter in roll gap 710.Should be appreciated that folding system 700 can be passed through structure and makes the leading edge 732 of flap 726 contact absorbent article 100 to produce the equidistant fold line 412 of Distance geometry to the second end 407 of first end 405.Thus, in some constructions, fold line 412 can be oriented to so that being divided equally by goods 100 is two.Be to be further appreciated that, folding system herein and method can be constructed to carry out twofold, three folding and/or four to fold to various types of absorbent article 100.Thus, fold line 412 can be positioned in the diverse location except the geometric center place of absorbent article 100.
Continue with reference to figure 6, along with the center 410 of absorbent article reboots in roll gap 710 by flap 726a, 726b, the second surface 740 that the second end 407 of absorbent article 100 continues along first direction 704 towards flap 726 moves.Meanwhile, the movement of the first end 405 of absorbent article 100 oppositely and move along third direction 744 towards the first surface 738 of flap 726.As mentioned above, flap can be configured with the trailing edge of extension, and it prevents the first petiolarea 406 of absorbent article 100 and the second petiolarea 408 and first end 405 and the second end 407 from mutually colliding.Replace, the first petiolarea 406 of absorbent article 100 contacts with the opposite side 738,740 of flap 726 with the second end 407 with the second petiolarea 408 and first end 405 during folding process.Such as, as shown in Figure 7, the leading edge 732 of flap 726 continues to promote absorbent article 100 by roll gap 710 along fold line 412 in second direction 712, and the first surface 402 of the first petiolarea 406 of absorbent article 100 forms facing relation with the first surface 738 of flap 726.Meanwhile, the first surface 402 of the second petiolarea 408 of absorbent article 100 forms facing relation with the second surface 740 of flap 726.And when absorbent article 100 is completely folding, the first end 405 of absorbent article 100 is separated with second surface 740 with the first surface 738 of the second end 407 by flap 726.The flap 726 that should be appreciated that herein also can be configured with and extend trailing edge 734, and it can not prevent the first petiolarea 406 of absorbent article 100 and the second petiolarea 408 and first end 405 and the second end 407 from mutually colliding during folding process.
As shown in Figure 8, folding absorbent article 100 transports through the roll gap 712 between the first carrier 702 and Second support 708 along second direction 712 and transmits away from goods transporting flat 706 and flap 726.And when the absorbent article 100 advanced subsequently is transmitted towards roll gap 710 and flap 726 along first direction 704 by the first carrier 702, flap 726 continue to rotate.As shown in Fig. 8 and 8A, flap 726 continue to rotate and trailing edge 734 are moved can be advanced through roll gap 710 by goods transporting flat 706 as far as the first petiolarea 406 of the absorbent article 100 being enough to make to advance subsequently and not touch with the second surface 740 of flap 726.As shown in Figure 8 A, the trailing edge 734 of flap 726 is also configured with straight edge, described straight edge be oriented to flap rotate when the absorbent article 100 advanced subsequently advances towards roll gap 710 between a complete refunding at least parallel with goods transporting flat 706 once.
As previously mentioned, flap 726 can be constructed such that the leading edge 732 of wherein flap 726 moves the time period maximization simultaneously contacting fold line 412 during folding process with maximal rate.As discussed with reference to figure 3-8A above, absorbent article 100 is sent to roll gap 710 with First Speed S1 by the first carrier 712.And the absorbent article 100 that the first carrier 712 and Second support 708 fold away from goods transport plane 706 and away from flap 726 transmission with First Speed S1.Therefore, the first carrier surface 716 and Second support surface 722 can be configured to move with First Speed S1.Concrete reference diagram 5 and Fig. 5 A, when leading edge 732a, the 732b of flap 726a, 726b be rotated into contact with the first surface 702 of absorbent article 100 time, fold line 412 is set up in the center 410 striding across absorbent article 100.Flap 726a, 726b absorbent article 100 guided again enter and by roll gap 710 time, the leading edge 732a of flap 726a, 726b, the part 746 (being called edge contact part 746a, 746b herein) of 732b keep contacting with fold line 412 and reach section Ttot total time of contact.
Fig. 9 shows in section total time of contact, and the carrier surface speed during Ttot and the general figures of edge contact partial velocity represent.As shown in Figure 9, when the leading edge 732 of flap 726 contacts absorbent article 100 first, edge contact part 746a, 746b can move by initial velocity Si.And when flap continue to rotate, edge contact part 746a, 746b accelerate to maximal rate Smax at time t1 place.Edge contact part 746a, 746b can keep maximal rate Smax to reach time period Tmax, and this is by deducting t1 to calculate from Ttot.And edge contact part 746a, 746b keep contacting with the fold line 412 of absorbent article 100, until folding products is transmitted away from flap 726 with First Speed S1 along second direction by the first carrier surface 716 and Second support surface 722.
Should be appreciated that the leading edge 732 of flap 726 can be configured to provide the different relative value of S1, Smax, total time and Tmax.Such as, in one structure, Smax can be the value of at least 0.8*S1 or larger.In another structure, Smax can be the value of at least 0.95*S1 or larger.In another structure, Smax can be the value equaling S1.In some constructions, Tmax can be at least 0.5* total time or larger value.In other constructs again, Tmax can be at least 0.7* total time or larger.In another structure, Tmax can be at least 0.9* total time or larger.
Although the disclosure is provided in manufacture absorbent article (particularly, diaper) context in, should be appreciated that system and method disclosed herein can be used for manufacturing various types of goods and product, it relates to the monitoring to various dissimilar substrate and/or assembly.The example of other products comprises the absorbent article for inanimate surfaces, such as its major function is for absorbing and retaining dirt and excremental consumer goods, and described dirt and Excreta can be solid or liquid and they are removed by from inanimate surfaces such as floor, object, furniture etc.Limiting examples for the absorbent article of inanimate surfaces comprises dedusting sheet, the cleaning piece of pre-wet or liner, napkin, dehydrator paper.The additional example of product comprises the absorbent article for life surface, and their major function absorbs and holds body exudates; More particularly, comprise the health being close to or being close to user to place, for absorbing and holding the various device by the effluent of body excretes.The limiting examples of incontinent absorbent goods comprise diaper, adult incontinence briefs and underwear, feminine such as sanitary pad, absorb insert etc., toilet paper, tissue paper, facial wipes or cloth and toilet training cleaning piece.Other examples other of product comprise package component and substrate and/or can be produced into bead or pouch and the container for laundry detergent compositions that can manufacture in conversion or fleece processing or even with the discrete product of the such as high speed bottling product line of high-speed production or cosmetics.The other example of product comprises web substrate, and it comprises the label that will be positioned on the bottle and/or container of laundry detergent compositions, cloth reinforcing agent, hair and aesthetic care products and cleaning product.In addition, be to be understood that, although the disclosure typically refers to substrate and/or fibroreticulate supervision or observation, be to be understood that detection system discussed in this article can be used in monitoring and/or observing fleece and single assembly and be added to the parts of continuous print web material and be added to the combined situation of discontinuous web material.
It is also understood that the various assemblies of converting equipment 300 can have various structure.Such as, although the first carrier 702 and Second support 708 are described to belt transporting apparatus, be understood that the first carrier 702 and/or Second support 708 can construct in every way.Such as, in certain embodiments, the first carrier 702 and/or Second support 708 can be constructed to rotating cylinder.In order to help to alleviate to transmit during the relevant problem of the not controlled movement of discrete diaper 100, the first carrier 702 and/or Second support 708 also can comprise the vacuum system that is communicated with porous and/or perforate band or make the suction of vacuum system can be applied to other foraminate carrier surface 716,722 on absorbent article 100.In certain embodiments, extra belt transporting apparatus can be orientated as and be adjacent to the first carrier 702 and/or Second support 708 to produce the other roll gap extended along first direction 704, wherein absorbent article 100 is maintained at flattened state, advances along first direction 704 simultaneously.
Should understand, dimension disclosed herein and value are not intended to be strictly limited to quoted exact numerical.On the contrary, except as otherwise noted, otherwise each such dimension is intended to the scope that represents described value and be functionally equal to around this value.Such as, the dimension being disclosed as " 40mm " is intended to represent " about 40mm ".
Unless expressly excluded, or in other words limit to some extent, each section of document quoted herein, comprise any cross reference or Patents or patent application and the application and any patent application or the patent of priority or its beneficial effect is required to it, be incorporated herein by reference all accordingly in full.Quoting of any document is not to its prior art as disclosed herein or claimed any invention; its individually or with any combination of other list of references any, or with reference to, propose, suggestion or disclose any accreditation that this type of is invented.In addition, if any implication of term or definition and any implication of same term in the document be incorporated herein by reference or define is conflicted mutually in this document, be as the criterion with the implication or definition of giving this term in this document.
Although illustrate and describe specific embodiments of the invention, it will be apparent to one skilled in the art that can make multiple other when not deviating from essence of the present invention and scope changes and modification.Therefore, be intended to contain in the following claims all this type of belonged in the scope of the invention herein change and amendment.
Claims (12)
1., for a method for unfolded absorbent article, said method comprising the steps of:
First carrier (702) transmits absorbent article (100) to limit goods transport plane (706) along first direction (704) with First Speed S1, wherein said absorbent article (100) comprises first surface (402) and the second surface (404) contrary with described first surface (402), wherein said absorbent article (100) comprises first end (405) and the second end (407), and wherein said absorbent article (100) comprises the first petiolarea (406) and the second petiolarea (408), and the center (410) be positioned between described first petiolarea (406) and the second petiolarea (408),
Described first petiolarea (406) is advanced through the roll gap (710) be limited between described first carrier (702) and Second support (708);
Swivel hinge plate (726), wherein said flap (726) comprise first surface (738) and the second surface (740) contrary with described first surface (738), and wherein said flap (726) comprise leading edge (732) and trailing edge (734), wherein when described flap (726) rotate, described leading edge (732) and described trailing edge (734) move through described goods transport plane (706) at described roll gap (710) place;
The described first surface (402) of described absorbent article (100) is contacted with the described leading edge (732) of described flap (726), produces the fold line (412) of the described center (410) across described absorbent article (100) thus;
The described leading edge (732) of described flap (726) is utilized again to be directed in described roll gap (710) along second direction (712) by the described center (410) of described absorbent article (100);
Keep the contact between the described leading edge (732) of described fold line (412) and described flap (726) to reach total time section Ttot, the part of the described leading edge (732) simultaneously contacted with described fold line (412) moves with the speed Smax of at least 0.8*S1 the time period Tmax reaching at least 0.5*Ttot; And
Between described first carrier (702) and described Second support (708) along described second direction away from described goods transport plane (706) transmit the absorbent article (100) that folds.
2. method according to claim 1, further comprising the steps of: cut described absorbent article (100) from the absorbent article (400) of continuous length, wherein said absorbent article (100) comprises the pitch length PL limited by the distance longitudinally between described first end (405) and described the second end (407).
3. method according to claim 2, further comprising the steps of: the absorbent article (400) longitudinally advancing described continuous length with linear velocity SL, wherein SL is less than S1.
4. method according to claim 1, further comprising the steps of: utilize one of described flap (726) complete rotation to carry out a folding n absorbent article (100), wherein n is greater than one.
5. method according to claim 4, wherein n is 2.
6., according to method in any one of the preceding claims wherein, wherein said first carrier (702) comprises belt transporting apparatus.
7., according to method in any one of the preceding claims wherein, wherein said Second support (708) comprises belt transporting apparatus.
8. according to method in any one of the preceding claims wherein, further comprising the steps of: the described first surface (402) of described first petiolarea (406) of described absorbent article (100) is positioned to the described first surface (738) of described flap (726) in facing relation, and the described first surface (402) of described second petiolarea (408) of described absorbent article (100) is positioned to the described second surface (740) of described flap (726) in facing relation, the described first end (405) of wherein said absorbent article (100) and described the second end (407) are by described flap (726) separately.
9. according to method in any one of the preceding claims wherein, wherein said absorbent article (100) comprises diaper (102), and wherein said first petiolarea (406) comprises front waist region, and wherein said second petiolarea (408) comprises back waist region.
10., according to method in any one of the preceding claims wherein, the described first surface (402) of wherein said absorbent article comprises the surface towards wearer.
11. according to method in any one of the preceding claims wherein, and wherein Smax is at least 0.95*S1, and Tmax is at least 0.7*Tot.
12. according to method in any one of the preceding claims wherein, wherein Smax is S1, and Tmax is at least 0.9*Tot.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201361824013P | 2013-05-16 | 2013-05-16 | |
| US61/824,013 | 2013-05-16 | ||
| PCT/US2014/037409 WO2014186217A1 (en) | 2013-05-16 | 2014-05-09 | Methods and apparatuses for folding absorbent articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105377203A true CN105377203A (en) | 2016-03-02 |
Family
ID=50980372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480025794.5A Pending CN105377203A (en) | 2013-05-16 | 2014-05-09 | Methods and apparatuses for folding absorbent articles |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20140342895A1 (en) |
| EP (1) | EP2996653A1 (en) |
| JP (1) | JP2016517780A (en) |
| CN (1) | CN105377203A (en) |
| WO (1) | WO2014186217A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105620834A (en) * | 2016-03-29 | 2016-06-01 | 陈善兰 | Automatic folding and packaging device |
| CN110326858A (en) * | 2019-07-03 | 2019-10-15 | 深圳云美珠宝设计有限公司 | A kind of gold button and its manufacture craft |
| CN110844680A (en) * | 2019-12-11 | 2020-02-28 | 江西美宝利实业有限公司 | Gauze piece folder based on human engineering |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160374866A1 (en) * | 2015-06-24 | 2016-12-29 | The Procter & Gamble Company | Method and Apparatus for Selectively Folding Absorbent Articles |
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- 2014-05-09 US US14/273,836 patent/US20140342895A1/en not_active Abandoned
- 2014-05-09 WO PCT/US2014/037409 patent/WO2014186217A1/en active Application Filing
- 2014-05-09 EP EP14732046.9A patent/EP2996653A1/en not_active Withdrawn
- 2014-05-09 CN CN201480025794.5A patent/CN105377203A/en active Pending
- 2014-05-09 JP JP2016513096A patent/JP2016517780A/en active Pending
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| CN110326858A (en) * | 2019-07-03 | 2019-10-15 | 深圳云美珠宝设计有限公司 | A kind of gold button and its manufacture craft |
| CN110844680A (en) * | 2019-12-11 | 2020-02-28 | 江西美宝利实业有限公司 | Gauze piece folder based on human engineering |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2996653A1 (en) | 2016-03-23 |
| US20140342895A1 (en) | 2014-11-20 |
| WO2014186217A1 (en) | 2014-11-20 |
| JP2016517780A (en) | 2016-06-20 |
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Application publication date: 20160302 |